Constant nimiq_database::lmdb::open::NOMETASYNC

pub const NOMETASYNC: Flags

Flush system buffers to disk only once per transaction, omit the metadata flush. Defer that until the system flushes files to disk, or next non-RDONLY commit or Environment::sync(). This optimization maintains database integrity, but a system crash may undo the last committed transaction. I.e. it preserves the ACI (atomicity, consistency, isolation) but not D (durability) database property. This flag may be changed at any time using Environment::set_flags().